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Finding the Fourth Proportional to 321,201.65, 481,615.72 and 121,537.46

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Solution

The fourth proportional to 321,201.65, 481,615.72 and 121,537.46 is: 182,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,201.65 : 481,615.72 = 121,537.46 : x
  2. Step 2: Convert to fraction form
    321,201.65/481,615.72 = 121,537.46/x
  3. Step 3: Cross multiply
    321,201.65x = 481,615.72 × 121,537.46
  4. Step 4: Simplify right side
    321,201.65x = 58,534,352,888.72
  5. Step 5: Solve for x
    x = 58,534,352,888.72/321,201.65
  6. Step 6: Final answer
    x = 182,235.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.